Dissolve the yeast in a mixture of 2 cups water and the honey in a bowl.,Let stand until frothy to activate the yeast, 10 to 15 minutes.,Add the sun-dried tomatoes, olives, rosemary, oil, whole wheat flour, unbleached flour, garlic powder and salt, mix with a mixer or by hand.,______,Place in an oiled bowl, turning to coat the surface.,Let rise, covered, in a warm place until doubled in bulk, 1 to 1 1/2 hours.,Preheat the oven to 400F (200C).,Divide into 10 portions and shape into balls.,Flatten into buns and place on a baking sheet coated with cooking spray.,Sprinkle with cornmeal, brush with the egg mixture and sprinkle with the sesame seeds.,Bake the buns until golden brown, about 25 minutes.,Cool for a few minutes.,Remove to a wire rack and cool.,Serve warm or room temperature.